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Int Braz J Urol. 2013 Nov-Dec;39(6):768-78. doi: 10.1590/S1677-5538.IBJU.2013.06.02.

Systematic review and meta-analysis of target terapies for the treatment of metastatic renal cancer.

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Faculty of Medical Sciences, Department of Oncological Urology, State University of Campinas (Unicamp), Campinas, SP, Brazil.



At present there are several drugs for the treatment of advanced renal cell carcinoma (ARCC). The main objective of this work was to perform a systematic review (SR) and meta-analysis (MA) of clinical randomized studies that compared target cell therapies (TCT).


SR identified clinical randomized trials that compared TCT versus interferon-alpha in the treatment of patients with ARCC. In order to analyze efficiency, it was evaluated free-survival progression (FSP), total survival (TS) and response rate (RR).


In relation to first line treatment, seven studies of TCT were identified using sunitinib, sorafenib, bevacizumab and temsirolimus; and two studies with sorafenib and everolimus for second line treatment. Relative risk (RRi) of MA for FSP of first line therapies was: 0.83, CI = 0.78-0.87, I2 = 94% and p < 0.00001. Best results of RR of specific FSP among studies were: 0.38, sunitinib, CI = 0.25-0.58, bevacizumab, 0.62, CI = 0.47-0.83; and temsirolimus, 0.78, CI = 0.70-0.87. MA didn't show any benefit regarding TS of first line treatment of all analyzed drugs. As for RR significant results were: sunitinib, 3.83 CI = 2.86-5.12; bevacizumab, 2.52 CI = 1.78-3.57 and bevacizumab, 1.97 CI = 1.43-2.71.


For first line treatment, sunitinib was the most effective TCT in relation to FPS; there was no alteration of TS and RR was small but significant for sunitinib and bevacizumab. Available studies could not conclude any results for second line treatments.

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